The period of $\bigg(\tan \theta -\large\frac{1}{3}$$\tan ^3 \theta\bigg)\bigg(\large\frac{1}{3}$$-\tan ^2 \theta\bigg)^{-1},$ Where $\tan ^{2} \theta \neq \large\frac{1}{3}$ is :

Question

$$\begin {array} {1 1} (1)\;\frac{\pi}{3} & \quad (2)\;\frac{2\pi}{3} \\ (3)\;\pi & \quad (4)\;2 \pi \end {array}$$